<style>
    img {
      width: 100%;
    }
    </style>
    
    <img src="./imgs/loading.gif" data-src="./imgs/1.jpg" alt="">
    <img src="./imgs/loading.gif" data-src="./imgs/2.jpg" alt="">
    <img src="./imgs/loading.gif" data-src="./imgs/3.jpg" alt="">
    <img src="./imgs/loading.gif" data-src="./imgs/4.jpg" alt="">
    <img src="./imgs/loading.gif" data-src="./imgs/5.jpg" alt="">
    <script src="./jq.js"></script>
    <script src="./jquery.lazyload.js"></script>
    <script>
        $('img').lazyLoad()
    </script>